CN111768694B - Ultra-thin straight following formula backlight unit - Google Patents
Ultra-thin straight following formula backlight unit Download PDFInfo
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- CN111768694B CN111768694B CN202010592990.8A CN202010592990A CN111768694B CN 111768694 B CN111768694 B CN 111768694B CN 202010592990 A CN202010592990 A CN 202010592990A CN 111768694 B CN111768694 B CN 111768694B
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- guide plate
- light guide
- backlight
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- light source
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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Abstract
The invention discloses an ultrathin direct type backlight module which comprises a backlight plate, wherein a light guide plate and a film material framework are arranged on the backlight plate, the light guide plate is positioned between the backlight plate and the film material framework, plastic parts are respectively arranged on two sides of the light guide plate and the film material framework, an LED light source is arranged between the light guide plate and the backlight plate, the light guide plate comprises a prism structure, a groove is arranged below the light guide plate, and one surface of the light guide plate, which is provided with the groove, is close to the backlight plate. According to the backlight module, the LED light source is arranged on the backlight plate by rotating the rotating piece, so that the backlight module is convenient to install and maintain; the LED light source is located the recess, effectively changes the light source direction, and light refracts through the arris body structure, reaches the atomizing effect of light source, and the evenly distributed of adjustment light source avoids appearing granule bright speck phenomenon, effectively reduces straight following formula cavity height in a poor light, replaces the vertical distance of original diffuser plate between the LED light source, reduces backlight thickness, reaches ultra-thin effect.
Description
Technical Field
The invention relates to a backlight module, in particular to an ultrathin direct type backlight module.
Background
In the current direct type backlight design, the LED light source is uniformly atomized by a diffusion plate above the LED to ensure the brightness uniformity of each area of the product. In order to avoid the generation of bright spots and halos on the picture by the LED particles, in the design of a general direct type backlight, a certain distance is required to be kept between the diffusion plate and the LEDs to ensure the uniform dispersion of the light sources, so that the direct type backlight is generally thicker due to the existence of the distance, and the ultra-thin design of the side type backlight cannot be realized.
Disclosure of Invention
The invention aims to provide an ultrathin direct type backlight module, which is convenient to install and maintain because an LED light source is installed on a backlight plate by rotating a rotating piece, the LED light source is positioned in a groove, the direction of the light source is effectively changed, light rays are refracted through a prism structure, the effect of light source atomization is achieved, the uniform distribution of the light source is adjusted, the phenomenon of particle bright spots is avoided, the height of a direct type backlight cavity is effectively reduced, the vertical distance between an original diffusion plate and the LED light source is replaced, the thickness of the backlight source is reduced, and the ultrathin effect is achieved.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides an ultra-thin straight following formula backlight unit, backlight unit includes the board that is shaded, be equipped with light guide plate and membrane material framework on the board that is shaded, the light guide plate is located between board and the membrane material framework that is shaded, and the both sides of light guide plate and membrane material framework all are equipped with the plastic part, are equipped with the LED light source between light guide plate and the board that is shaded.
The light guide plate comprises a prism structure, a groove is arranged below the light guide plate, and one surface of the light guide plate, which is provided with the groove, is close to the backlight plate.
The light guide plate adopts PMMA material to replace the traditional diffuser plate, and the light transmittance of the PMMA material is more than 85%.
The backlight plate is provided with a placing hole, a threaded hole is formed below the placing hole, a limiting hole is formed in the threaded hole, a limiting groove is formed in the limiting hole, and a communicating groove is formed in the limiting hole.
Furthermore, the prism structure and the groove are respectively positioned on two sides of the light guide plate.
Further, the LED light source is MiniLED particles, and the LED light source is located in the groove.
Further, the LED light source comprises a clamping piece, a mounting piece is arranged on the clamping piece in a rotating mode, a light source main body is arranged on the mounting piece, and an elastic piece is arranged on the mounting piece.
Further, the fastener includes the rotating member, is equipped with the screw thread post on the rotating member, is equipped with the axis of rotation on the screw thread post, the one end and the axis of rotation fastening connection of axis of rotation, and the other end is equipped with the stopper.
Further, the installed part includes the block post, is equipped with spacing guide block on the block post, is equipped with the rotation connecting hole on the block post, is equipped with spacing hole in the rotation connecting hole, is equipped with the installation piece on the block post, and the light source main part is installed on the installation piece.
Furthermore, the clamping piece is rotatably connected with the rotating connecting hole through a rotating shaft and is rotatably connected with the limiting hole through a limiting block.
Furthermore, the elastic piece suit is on the installation piece, and the one end and the block post fastening of elastic piece are connected, and the other end is connected with the inner wall fastening in spacing hole.
Further, the fastener passes through the screw post and the screw hole cooperation, and the installed part passes through spacing guide block and spacing groove cooperation, through installation piece and intercommunication groove cooperation.
The invention has the beneficial effects that:
1. according to the backlight module, the LED light source is arranged on the backlight plate by rotating the rotating piece, so that the backlight module is convenient to install and maintain;
2. the LED light source of the backlight module is positioned in the groove, the direction of the light source is effectively changed, light rays are refracted through the prism structure, the atomization effect of the light source is achieved, the uniform distribution of the light source is adjusted, the phenomenon of particle bright spots is avoided, the height of a direct type backlight cavity is effectively reduced, the vertical distance between the original diffusion plate and the LED light source is replaced, the thickness of the backlight source is reduced, and the ultrathin effect is achieved.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of a backlight module according to the present invention;
FIG. 2 is a schematic view of a portion of a backlight module according to the present invention;
FIG. 3 is a schematic view of the prism structure of the light guide plate according to the present invention;
FIG. 4 is a sectional view of a portion of the backlight module according to the present invention;
FIG. 5 is a schematic view of a backlight panel according to the present invention;
FIG. 6 is a schematic view of the engaging member of the present invention;
fig. 7 is a schematic view of the mount construction of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model provides an ultra-thin straight following formula backlight unit, backlight unit includes backlight 1, as shown in fig. 1, is equipped with light guide plate 2 and membrane material framework 5 on backlight 1, and light guide plate 2 is located between backlight 1 and membrane material framework 5, and light guide plate 2 and membrane material framework 5's both sides all are equipped with plastic part 4, are equipped with LED light source 3 between light guide plate 2 and the backlight 1.
The light guide plate 2 includes a prism structure 21, as shown in fig. 2 and fig. 3, a groove 22 is disposed below the light guide plate 2, the prism structure 21 and the groove 22 are respectively disposed on two sides of the light guide plate 2, and a surface of the light guide plate 2 on which the groove 22 is disposed is close to the backlight plate 1.
The light guide plate 2 adopts PMMA (polymethyl methacrylate) material, replaces traditional diffuser plate, because PMMA material light transmittance reaches more than 85%, effectively reduces the light loss, promotes the light efficiency, reaches the little high grey scale effect of equal energy consumption.
The backlight plate 1 is provided with a placing hole 11, as shown in fig. 4 and 5, a threaded hole 12 is provided below the placing hole 11, a limiting hole 13 is provided in the threaded hole 12, a limiting groove 14 is provided in the limiting hole 13, and a communicating groove 15 is provided in the limiting hole 13.
The LED light source 3 includes an engaging member 31, a mounting member 32 rotatably provided on the engaging member 31, a light source body 34 provided on the mounting member 32, and an elastic member 33 provided on the mounting member 32.
The engaging member 31 includes a rotating member 311, as shown in fig. 6, a threaded column 312 is disposed on the rotating member 311, a rotating shaft 313 is disposed on the threaded column 312, one end of the rotating shaft 313 is fastened to the rotating shaft 313, and a limit block 314 is disposed at the other end.
The mounting member 32 includes a locking post 321, as shown in fig. 7, a limiting guide block 322 is disposed on the locking post 321, a rotation connection hole 324 is disposed on the locking post 321, a limiting hole 325 is disposed in the rotation connection hole 324, a mounting block 323 is disposed on the locking post 321, and the light source body 34 is mounted on the mounting block 323.
The engaging member 31 is rotatably connected to the rotation connecting hole 324 through the rotation shaft 313, and rotatably connected to the stopper hole 325 through the stopper 314.
The elastic member 33 is fitted over the mounting block 323, and one end of the elastic member 33 is fastened to the engaging post 321, and the other end is fastened to the inner wall of the limiting hole 13.
The engaging piece 31 is engaged with the screw hole 12 through the screw post 312, and the mounting piece 32 is engaged with the stopper groove 14 through the stopper guide 322 and with the communicating groove 15 through the mounting piece 323.
During the use, through rotating swivel part 311 for LED light source 3 installs on board 1 is shaded, easy to assemble and maintenance, LED light source 3 is located recess 22, effectively changes the light source direction, light refracts through arris body structure 21, reach the atomizing effect of light source, the evenly distributed of adjustment light source avoids appearing granule bright spot phenomenon, effectively reduces straight following formula cavity height of being shaded, replace the vertical distance of original diffuser plate between the LED light source, reduce backlight thickness, reach ultra-thin effect.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (4)
1. An ultrathin direct type backlight module comprises a backlight plate (1), and is characterized in that the backlight plate (1) is provided with a light guide plate (2) and a film material framework (5), the light guide plate (2) is positioned between the backlight plate (1) and the film material framework (5), both sides of the light guide plate (2) and the film material framework (5) are provided with plastic parts (4), and an LED light source (3) is arranged between the light guide plate (2) and the backlight plate (1);
the light guide plate (2) comprises a prism structure (21), a groove (22) is arranged below the light guide plate (2), and one surface of the light guide plate (2) provided with the groove (22) is close to the backlight plate (1);
the light guide plate (2) adopts PMMA material to replace the traditional diffusion plate, and the light passing rate of the PMMA material is more than 85%;
the backlight plate (1) is provided with a placing hole (11), a threaded hole (12) is arranged below the placing hole (11), a limiting hole (13) is arranged in the threaded hole (12), a limiting groove (14) is arranged in the limiting hole (13), and a communicating groove (15) is arranged in the limiting hole (13);
the LED light source (3) comprises a clamping piece (31), a mounting piece (32) is rotatably arranged on the clamping piece (31), a light source main body (34) is arranged on the mounting piece (32), and an elastic piece (33) is arranged on the mounting piece (32);
the clamping piece (31) comprises a rotating piece (311), a threaded column (312) is arranged on the rotating piece (311), a rotating shaft (313) is arranged on the threaded column (312), one end of the rotating shaft (313) is fixedly connected with the rotating shaft (313), and a limiting block (314) is arranged at the other end of the rotating shaft;
the mounting piece (32) comprises a clamping column (321), a limiting guide block (322) is arranged on the clamping column (321), a rotating connecting hole (324) is formed in the clamping column (321), a limiting hole (325) is formed in the rotating connecting hole (324), a mounting block (323) is arranged on the clamping column (321), and the light source main body (34) is mounted on the mounting block (323);
the clamping piece (31) is rotatably connected with the rotating connecting hole (324) through a rotating shaft (313) and is rotatably connected with the limiting hole (325) through a limiting block (314);
the clamping piece (31) is matched with the threaded hole (12) through the threaded column (312), the mounting piece (32) is matched with the limiting groove (14) through the limiting guide block (322) and is matched with the communication groove (15) through the mounting block (323).
2. An ultra-thin direct type backlight module according to claim 1, wherein the prism structures (21) and the grooves (22) are respectively located at two sides of the light guide plate (2).
3. An ultra-thin direct type backlight module according to claim 1, wherein the LED light sources (3) are Mini LED particles, and the LED light sources (3) are located in the grooves (22).
4. The backlight module of claim 1, wherein the elastic member (33) is sleeved on the mounting block (323), one end of the elastic member (33) is fastened to the engaging post (321), and the other end is fastened to the inner wall of the limiting hole (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010592990.8A CN111768694B (en) | 2020-06-25 | 2020-06-25 | Ultra-thin straight following formula backlight unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010592990.8A CN111768694B (en) | 2020-06-25 | 2020-06-25 | Ultra-thin straight following formula backlight unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111768694A CN111768694A (en) | 2020-10-13 |
| CN111768694B true CN111768694B (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010592990.8A Active CN111768694B (en) | 2020-06-25 | 2020-06-25 | Ultra-thin straight following formula backlight unit |
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| CN111768694A (en) | 2020-10-13 |
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